mineral
Red Jasper
Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque red color caused by iron impurities, waxy to dull luster, and conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque red color caused by iron impurities, waxy to dull luster, and conchoidal fracture.
Formation & geological history
Formed through the hydrothermal deposition of silica-rich fluids or alteration of sedimentary deposits, often in marine environments.
Uses & applications
Used extensively for ornamental carvings, polished stones, cabochons in jewelry, and geological collecting.
Geological facts
Red jasper has been used since ancient times for talismans, seals, and weaponry components by various civilizations like the ancient Egyptians.
Field identification & locations
Easily identified by its deep red color, lack of cleavage, and ability to scratch glass. Found worldwide in weathered volcanic rocks and stream gravels.
